Tutorial: Sound Removal, Auto-Speech Alignment, and More in Adobe Audition CC
Exploring 3 new key features in Audition CC, the newest version of Adobe's professional audio editing application: Sound Removal for eliminating hums and other variable-frequency unwanted noises, the Loudness Radar Meter for matching and adhering to broadcast volume standards, and Automatic Speech Alignment for ADR.
So, as you may have been able to hear, we really didn't lose too much of that bottom end. But it was just enough to bug me. So once again I'm going to select the area that I took the bass out of and choose Effects > Graphic Equalizer (10 Bands), as shown in Figure 10 (below). There I’ll choose a preset designed to address problems like this one called Simple Bass Lift (Figure 11, below Figure 10). And I’ll bump it up just a little more because I want to make sure it's a nice full sounding track.
Figure 10. Choosing Graphic Equalizer (10 Bands).
Figure 11. Choosing the Simple Bass Lift preset.
Let’s preview again at 4:50 in the clip below, and keep going to compare to the original.
As you can hear, we've successfully clarified the audio just a little bit. We restored that bottom end without reintroducing that hum. So that's the Sound Remover tool.
Setting Broadcast-Legal Volume
Once you've applied all the effects that you want from Sound Remover, let's just say that you decide you want to broadcast “Blow the Man Down” on CNN next week. As a broadcaster, CNN has regulations governing their broadcast for things like maximum volume. And you have to make sure that the file that you provide to them is going to meet those requirements.
Audition now has a tool specifically designed to help you meet those standards. It’s called the Loudness Radar Meter, and you’ll find it under Effects > Special (Figure 12, below).
Figure 12. Choosing the Loudness Radar Meter.
The Loudness Radar Meter is pretty much what it sounds like. It gives you a radar for detecting whether your audio meets broadcast standards or now. Figure 13 (below) shows presets for the different standards. For this example, we’ll choose the first one, ATSC/AT-85 LK ES.
Figure 13. Choosing a Loudness Radar Preset.
Now, when you preview your clip, look over in the Loudness Radar Meter and you’ll see a visual decibel meter specific to your chosen preset, showing you all the way up to your peak (Figure 14, below), and indicating whether you’ve exceeded it.
Figure 14. Color-coded peaking indicators in the Loudness Radar Meter for our chosen preset.
If you choose a different preset, Audition will adjust not only the range but also form that's been shaping inside the circle in the dialog. Another thing you can do is change the increment of time that the covers (Figure 15, below) by selecting the Settings tab at the top of the dialog. If you want one revolution to be one minute, just change the speed there, and the meter will move much faster to take that full revolution in only a minute. Anything you adjust in this dialog will change in real time, including changing the visualization in the radar meter.
Figure 15. Changing the time interval in the Settings tab.
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